Complete Failures and Partial Failures of
a Resource

A fault monitor treats some faults as a complete failure of
a resource. A complete failure typically causes a complete loss of service. The following
failures are examples of a complete failure:

Unexpected termination of the process for a data service server

Inability of a fault monitor to connect to a data service server

A complete failure causes the fault monitor to increase by 1 the count of complete
failures in the retry interval.

A fault monitor treats other faults as a partial failure of
a resource. A partial failure is less serious than a complete failure, and typically
causes a degradation of service, but not a complete loss of service. An example of
a partial failure is an incomplete response from a data service server before a fault
monitor probe is timed out.

A partial failure causes the fault monitor to increase by a fractional amount
the count of complete failures in the retry interval. Partial failures are still accumulated
over the retry interval.

The following characteristics of partial failures depend on the data service:

The types of faults that the fault monitor treats as partial failure

The fractional amount that each partial failure adds to the count
of complete failures

For information about faults that a data service's fault monitor detects, see
the documentation for the data service.